Implement for bias-cutting.



No. 816,529. PATENTED MAR. 27,-1906J N. B. BURT. IMPLEMENT FOR BIASCUTTING.

APPLICATION FILED JUNE 15. 1905.

W/T/VESSfS; I m g/vrof? I H 155M ATTO/P/Vfy NEWTON B. BURT, OF NEW YORK,N. Y.

IMPLEMENT FOR BIAS-CUTTING.

Specification of Letters Patent.

Patented March 27, 1906.

Application filed June 15, 1905. Serial No. 265,456.

To all whmn it may concern:

Be it known that I, NEWTON B. BURT, a citizen of the United States,residing in New York city, in the county of New York and State of NewYork, have invented certain new and useful Implements for Bias-Cutting,"

needs of dressmakers and the like in that it is readily assembled uponan capable of being ordinary table or cutting surface, will be so simpleand durable as to be easily made at a small cost.

It is also an object of my invention to provide a cutting implement ofthis nature by the use of which widths of any predetermined size may beaccurately gaged and cut, provision being further made whereby thecutting edge may be readily brought in close contact with and to anydesired degree compress the underlying material, which will in ordinaryuse be of variable thickness. Such provision is of a considerableadvantage, since in cutting fabrics and other limp material it isdesirable that the same be tightly clamped so as not to crumple beforethe cutting edge.

As the invention may be more clearly described in connection withillustrations, a drawing showing a preferred embodiment is appended as apart of this specification, and in such drawing like letters ofreference denote corresponding parts. By such drawing is shown a generalperspective of oneform of my invention as used in the cutting of biasstrips from a piece of goods, and by reference to the same it will benoted that the invention partly comprises a traveling cutter-guide orstraight-edge 2 and a suitable fixed guide 1 therefor.

In the shown adaptation the fixed guide comprises a vertically-yieldingguide-rod 12,

roviding for an up-and-down movement of the cutter-guide end in orderthat the latter may accommodate itself to materials of variousthicknesses and compress them to a sufficient degree to allow theknife-edge to act at a full efiiciency. To provide for such movement,the guide-bar is mounted at its ends in vertically-yielding bearings 18,which consist of a plate having a slot wherein rides the ends of theguide-bar 12, the latter being restrained from lateral displacement bycircumferential grooves in the ends thereof, which grooves are engagedby the sides of the slot-bearings. To carry the weight of the bar andthe dependent attachments an expansible spring 131 is mounted withinsaid slot intermediate the bar and the supporting-base, as shown in thedrawing. It will be clear that such construction will constrain anyhorizontal move ment of the bar in a plane parallel to the table withoutinterfering with a vertical elastic yield, Connecting such end pieces ascalebar 14 may be employed, serving to brace and keep the end bearingproperly spaced apart and by cooperation with thehereinafter-referred-to index-pointer to indicate the width of thestrips cut. Such scale is referably so subdivided that when a givenwidth of cloth is spaced off by the knifeguide the scale will indicatethe exact width in English, metric, or other preferred units ofmeasurement. It will of course be understood in this connection thatwhereas I have shown the scale as engraved upon its crossbar, it maylikewise be conveniently engraved upon the guide 12, beginning, ifdesired, at an extreme end thereof, and the knife-guide having asuitable pointer operating in conjunction therewith.

The c'utter-guide portion has two parallel blades 21 and 22, slightlyspaced apart, so as to permit the insertion of a knife-edgetherethrough. At the outer ends of such blades a connecting T 23 isprovided, the intermediate extended arm of which is of springy materialand has mounted at its extreme end a globular roller 24, so as toprovide for a free movement in a direction diagonal to the axis of saidroller. Through the instrumentality of the spring-arm the cutter-guidehas sufficient up-and-down play to allow for a considerable diversity inthe thickness of the material cut. The aforesaid blades are fixed to andat an angle of approximately forty-five degrees angularly extend fromthe supporting-frame 25, which by means of hook-like members 26 isslidably and detachably mounted upon and supported from the rod 12, andas the latter is vertically yieldable a cally-yieldable guide-rodfreedom of movement is given to the frame and knife-guide extendingtherefrom. Such frame, furthermore, carries a suitable indexpointer 27,which by reference to. a suitablygraduated scale 14 denotes the precisewidth of the strips cut.

While having thus described my invention so that the same may beunderstood and put into practice by all authorized by me to do so, itwill be understood that therein certain modifications in detail may beresorted to without departing from the spirit of the invention orsacrificing any of its advantages.

What I claim as new, and'desire to secure by Letters Patent, is-

1. In a bias-cutting implement, a guiderod and a knife-guide slidabletherealong and detachably dependent therefrom by hooklike arms.

2. In a bias-cutting implement, a cuttingarm mounted upon a horizontalguide-rod so as to freely slide therealong, said slide-rod beingelastically supported.

3. In a bias-cutting implement, a cuttingarm having hook-arms detachablyengaging with and slidably mounted upon a horizontal guide-rod, saidslide-rod being vertically yieldable.

4. In a biascutting implement, a knifeguide supported at one extreme endby a flexible extension carrying a ball-roller at the end thereof.

5. A bias-cutting implement having a cutting-guide horizontally movablein the plane of the table and elastically supported vertically toaccommodate goods of diverse thicknesses.

6. A bias-cutting implement having a cutting-guide laterally movable inparallel diag onals in the plane of the table and elastically supportedvertically to accommodate goods of diverse thicknesses.

7. In a bias-cutting implement, a knife edge having anelastically-supporting rollerbearing at one extreme end thereof, and atthe other end being dependent from a vertically-yieldable guide-rod. V

8. In a bias-cutting implement, avertii anddetachably dependenttherefrom a knifeguide supported at one extreme end by a flexibleextension carrying a ball-roller at the end thereof.

9. In a bias-cutting implement, a knifeedge having a yieldingroller-bearing at one extreme end thereof, said knife-edge beingdependent at the other end from a vertically yieldable guide-rod andextending therefrom at an angle of approximately forty-five de grees.

10. In a bias-cutting implement, a fixed guide comprising a scale-endbearings and a guide-rod elastically supported therein, a knife-guidecarrier dependent from said rod by hook-like arms, and a knife-guidehaving an elongated slot extending therefrom and yieldably supported atits extreme end by a roller-ball, said carrier providing an indexpointerfor registering the Width of cloth cut.

11. In a bias-cutting implement, a fixed guide comprising slotted endpieces, springs therein, a guiderod supported by said springs, and aknife-guide slidably mounted upon said guide-rod and having an indexpointer associated with a suitable scale upon said fixed guide.

12. In a bias-cutter, a fixed guide member having a vertically-yieldableguide-rod elastically supported at its ends in suitable bearings and aknife-guide detaohably dependent from said rod and having an index-pointer for determining the Width of the cut strips, said knife-guide havinga yielding bearing upon its extreme end.

13. In a bias-cutting implement, a fixed guide comprising slotted endpieces, springs therein, and a guide-rod vertically supported by saidsprings but restrained against other movement, and a knife-guideslidably mounted upon said guide-rod and having an index pointerassociated with a suitable scale upon said fixed guide for determiningwidth of strips cut.

14. In a bias-cutter, a fixed guide member having a vertically-yieldableguide-rod supported by springs in suitable bearings at its ends, a scaleand a knife-guide detachably dependent therefrom having an index-pointerfor cooperating with said scale in determining the width of the cutstrips, said knife-guide having a yielding bearing upon its extreme end.

15. In a bias-cutting implement, a fixed guide comprising a scale, endbearings, and a guide-rod elastically supported therein, a knife-guidecarrier dependent from said rod by hook-like arms, and a knife-guidehaving an elongatedslot extending therefrom and yieldably supported atits extreme end bya rollerball,said carrier providing an index-pointerfor registering the width of cloth cut.

NEWTON B. BURT.

Witnesses ALBERT F. NATHAN, D. G. ABEEL.

